# CTH \| Contrôles Industriels: Specialists in industrial control and automation solutions across Canada\. > CTH provides process instrumentation and automation across Canada\. Pressure, flow, level, vibration, temperature, wireless and valve systems\. Generated by Yoast SEO v28.2, this is an llms.txt file, meant for consumption by LLMs. ## Pages - [Instrumentation for Hazardous Areas and Extreme Environments](https://cth.ca/hazardous-area-instrumentation/): A complete guide to hazardous area instrumentation and extreme\-environment sensing for Canadian industry, from zone classifications and intrinsic safety barriers to gas detection, infrared temperature sensors and ruggedized laser distance measurement\. - [Understanding Hazardous Area Classifications and Intrinsic Safety](https://cth.ca/hazardous-area-instrumentation/hazardous-area-classifications-guide/): An educational guide to hazardous area classification in Canada, covering the Class/Division and Zone systems and how to select intrinsic safety barriers, explosion proof enclosures and purged systems for petrochemical, mining and chemical facilities\. - [Industrial Gas Detection: Protecting Personnel in Confined Spaces](https://cth.ca/hazardous-area-instrumentation/industrial-gas-detection/): A practical guide to industrial gas detection for confined space entry: atmospheric hazards, fixed versus portable monitors, sensor technologies, and the calibration and bump\-testing routines that keep instruments trustworthy\. - [Precision Distance Measurement: Laser and Radar Sensors for Harsh Environments](https://cth.ca/hazardous-area-instrumentation/precision-distance-measurement/): How ruggedized laser and radar distance sensors deliver precise, non\-contact distance measurement for material handling, positioning and collision avoidance across mining, bulk handling, ports and heavy manufacturing\. - [Industrial Instrumentation Guides](https://cth.ca/instrumentation-guides/): CTH's technical guides for selecting industrial level, flow, predictive maintenance and hazardous area instrumentation\. ## Posts - [How to Choose the Right Industrial Flow Meter for Your Process Application in Quebec](https://cth.ca/industrial-flow-meters-quebec-selection-guide/) - [Enhancing Mining Operations with Robust Process Instrumentation](https://cth.ca/mining-instrumentation-monitoring-canada/) - [Optimizing Petrochemical Operations with Advanced Instrumentation](https://cth.ca/petrochemical-process-instrumentation-canada/) - [How to Select the Right Level Measurement Technology for Your Industrial Application in Quebec](https://cth.ca/industrial-level-measurement-quebec-technology-guide/) - [Hello world\!](https://cth.ca/fr/hello-world/) ## Products - [DLS\-C – distance sensors](https://cth.ca/product/dls-c-distance-sensors/): \
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